linux-kernel - Re: 2.6.33.2 kmalloc-8 slab leaks ~512 objects per second

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Message-ID: <201005261722.14252.tvrtko.ursulin@sophos.com>
Date:	Wed, 26 May 2010 17:22:14 +0100
From:	Tvrtko Ursulin <tvrtko.ursulin@...hos.com>
To:	David Rientjes <rientjes@...gle.com>
CC:	Catalin Marinas <catalin.marinas@....com>,
	Pekka Enberg <penberg@...helsinki.fi>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	David Airlie <airlied@...ux.ie>,
	"dri-devel@...ts.sourceforge.net" <dri-devel@...ts.sourceforge.net>,
	Jerome Glisse <glisse@...edesktop.org>
Subject: Re: 2.6.33.2 kmalloc-8 slab leaks ~512 objects per second

On Wednesday 26 May 2010 10:21:36 David Rientjes wrote:
> On Thu, 13 May 2010, Tvrtko Ursulin wrote:
> > > You could just enable CONFIG_DEBUG_KMEMLEAK on 2.6.33, mount the
> > > debugfs and do a 'cat /sys/kernel/debug/kmemleak' after a half-hour or
> > > so.
> >
> > I could do it if radeon/drm guys would be interested in those results?
> > (Given how 2.6.34-rc7 is not leaking.)
>
> Did you get a chance to find out if kmemleak was able to identify the
> source of this problem?

Well no, I asked DRM/radeon guys to explicitly say whether it would be useful,
otherwise it is unfortunately sufficiently low on my priority list that it
will probably never happen.

Tvrtko

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